package com.packtpub.springsecurity.domain;

import java.util.Calendar;

import javax.validation.constraints.NotNull;

import org.hibernate.validator.constraints.NotEmpty;

/**
 * An {@link Event} is an item on a calendar that contains an owner (the person who created it), an attendee
 * (someone who was invited to the event), when the event will occur, a summary, and a description. For simplicity, all
 * fields are required.
 *
 * @author Rob Winch
 *
 */
public class Event {
    private Integer id;
    @NotEmpty(message = "Summary is required")
    private String summary;
    @NotEmpty(message = "Description is required")
    private String description;
    @NotNull(message = "When is required")
    private Calendar when;
    @NotNull(message = "Summary is required")
    private CalendarUser owner;
    private CalendarUser attendee;

    /**
     * The identifier for the {@link Event}. Must be null when creating a new {@link Event}, otherwise non-null.
     *
     * @return
     */
    public Integer getId() {
        return id;
    }

    /**
     * The summary of the event.
     * @return
     */
    public String getSummary() {
        return summary;
    }

    public void setSummary(String summary) {
        this.summary = summary;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    /**
     * The detailed description of the event.
     * @return
     */
    public String getDescription() {
        return description;
    }

    public void setDescription(String description) {
        this.description = description;
    }

    /**
     * When this event is happening.
     * @return
     */
    public Calendar getWhen() {
        return when;
    }

    public void setWhen(Calendar when) {
        this.when = when;
    }

    /**
     * The owner (who created the Event)
     * @return
     */
    public CalendarUser getOwner() {
        return owner;
    }

    public void setOwner(CalendarUser owner) {
        this.owner = owner;
    }

    /**
     * The user that was invited to the event.
     * @return
     */
    public CalendarUser getAttendee() {
        return attendee;
    }

    public void setAttendee(CalendarUser attendee) {
        this.attendee = attendee;
    }


    // --- override Object ---

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((id == null) ? 0 : id.hashCode());
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        Event other = (Event) obj;
        if (id == null) {
            if (other.id != null)
                return false;
        } else if (!id.equals(other.id))
            return false;
        return true;
    }
}